Engine-Codes.com
Engine-Codes – Generic – P0708

P0708 Code - Transmission Range Sensor Circuit High Input

Quick Answer

The P0708 code indicates a problem with the transmission range sensor circuit, specifically a high input signal. Common causes include Faulty transmission range sensor, Damaged wiring or connectors in the sensor circuit, Short circuit in the transmission range sensor circuit. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0708 indicates Transmission Range Sensor Circuit High Input.
Common causes
Common causes include Faulty transmission range sensor, Damaged wiring or connectors in the sensor circuit, Short circuit in the transmission range sensor circuit.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 16, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P0708 Description

The P0708 code indicates a problem with the transmission range sensor circuit, specifically a high input signal. The transmission range sensor, also known as the neutral safety switch, is responsible for informing the vehicle's computer about the gear position selected by the driver. This information is crucial for the proper operation of the transmission, engine, and other related systems. When the sensor detects a high input signal, it means that the voltage level in the circuit is higher than the specified range, indicating a malfunction.

OBDII Code P0708 - Transmission Range Sensor Circuit High Input
P0708 Code - Transmission Range Sensor Circuit High Input

Common Causes of P0708

  1. Faulty transmission range sensor
  2. Damaged wiring or connectors in the sensor circuit
  3. Short circuit in the transmission range sensor circuit
  4. Malfunctioning PCM
  5. Corrosion or poor connections in the sensor circuit

Symptoms of P0708

  1. Difficulty starting the vehicle
  2. Inability to shift gears
  3. Incorrect gear display on the dashboard
  4. Harsh shifting or erratic transmission behavior
  5. Illumination of the Check Engine Light

How to Fix P0708

  1. Begin by connecting a diagnostic scanner to the vehicle's OBD-II port to retrieve the fault code and confirm the issue.
  2. Inspect the wiring and connectors in the transmission range sensor circuit for any damage, corrosion, or loose connections. Repair or replace as necessary.
  3. Test the transmission range sensor using a multimeter to ensure it is functioning correctly. Replace the sensor if it fails the test.
  4. Clear the fault code from the vehicle's computer using the diagnostic scanner and test drive the vehicle to confirm that the issue has been resolved.
  5. If the problem persists, further diagnostic testing may be required to identify any underlying issues with the PCM or other related components.

Cost to Fix P0708

The typical repair costs for addressing a P0708 code can vary depending on the specific cause of the issue and the labor rates in your area. In general, you can expect to pay anywhere from $150 to $400 for parts and labor. Keep in mind that diagnostic time and labor rates at auto repair shops can vary, so it's advisable to obtain quotes from multiple shops to ensure a competitive price. Additionally, factors such as the vehicle make and model, as well as the location of the repair shop, can influence the final cost.

Need more information about the P0708 code?

Need more information on how to fix the P0708 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0708 code diagnosed by a professional: Find a repair shop in your area

Code P0708 Information for Specific Makes

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0708 Code

No Frequently Asked Questions about P0708 Code found.

Discuss the causes and fixes for P0708 OBDII Code

Submit a New Comment

  • replaced park neutral switch and transmission range sensors high input low input still have check engine light on could it be the park neutral swit
    ch is not adj
    usted right

    Reply to Comment

  • 2004 ford taurus replaced park/neutral switch and both speed sensors on transmission still check engine light is on could it be the p/n switch isnt adjusted right? ive had it with this car

    Reply to Comment